Saw-set.



PATENTED APR. 5, 1904.

' J. B. LESTER.

SAW SET.

APPLICATION FILED AUG. 15. 1903.

N0 MODEL.

Joseph BLester 3wowtoz.,

Patented April 5, 1904.

PATENT OFFICE.

JOSEPH B. LESTER, OF NOR'WICH, CONNECTICUT.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 756,662, dated April 5,1904.

Application filed August 15, 1903.

To all 1071,0771, it puny concern.-

Beitknown that I, J OSEPH B. LESTER, acitizen of the United States,residing at Norwich, in the county of New London and State ofConnecticut, have invented certain new and useful Improvements inSaw-Sets, of which the following is a specification, reference being hadto the accompanying sheet of drawings, in which Figure l is aside viewof a saw-set embodying my present improvements, and Fig. 2 is a top orplan view of the same. Fig. 3 is a side view of the hinged jaws of theset, the adjustable gage having been removed. Fig.

4 is a detached central vertical sectional View of said gage.

The object of this invention is to provide a simple, cheap, andserviceable saw-set in the form of a hand implement that may be readilyadjusted for use with coarse or fine saw-teeth and to give more or lessset to such teeth, as may be desired.

My said improvements are mounted upon or embodied in an implementconsisting of two principal members a a of handle form, that are hingedtogether by means of a pivotscrew 5 and are held normally open byasuitable spring, here shown as a barrel-spring c, that is housed withinthe said hinge-joint, as indicated in Fig. 1. The lower jaw (1/ isextended an inch, or thereabout, and has slidably mounted thereon aframe (Z, that serves as a'stop or gage to limit the entrance of the sawinto the set. The gage (Z is secured to the lower jaw a by a thumb-screwe, that passes through a slot (Z' in the said gage, (see Fig. 4,) and itwill now be understood that by partially unscrewing the thumb-screw ethe gage (Z may be adjusted outward orinward upon the jaw 0/ within thelimits of the slot (Z. (See dotted lines in Fig. 1.) The gage (Z isformed as an open frame in its up-- per portion, as seen in Fig. 2, sothat the settingjaw of the implement, as well as the sawtooth that isbeing acted upon, may be viewed during the setting operation.

In the overhanging free end portion of the gage (Z is a screw 9, onwhich is preferably a check-nut y. W hen the implement is in use,

the screw 9 is so adjusted that the saw-blade may be easily insertedbetween the end of Serial No. 169,628. (No model.)

said screw and the upper side of the extended jaw 0 the said upper sideof the jaw being so formed that the saw-tooth is presented to the upperor setting jaw at an angle, as shown in Fig. 1, in which figure thesaw-blade is indicated by dotted lines.

l/Vhen the jaws of the implement close upon the tooth, the latter isset, or, in other words, is bent out of the plane of the bodyor blade ofthe saw. Meanwhile the toothed edge of the saw-blade engages thesidewalls of the gageframe (Z, and the entrance of the tooth between thejaws is thus limited and all of the teeth are successively set alike. Byadjusting the gageframe (Z outward or inward teeth of greater or lesserdepth may be set.

My described implement is of simple construction, and its operativeparts are so arranged that they may be viewed by the operator during thesetting operation.

Having thus described my invention, I claim The improved saw-set hereindescribed consisting of a pair of pivoted jaws the lower one of which isextended to form an extended sawsupport, an open bow-shaped frame havinglateral bowed portions, saidframe embracing and slidably mounted on thesaid lower jaw independently of the upper jaw and having its upperoverhanging free end portion extended above the extended portion of thelower jaw, said frame having its bow portion extended backward inproximity to the pivot of the jaws and having a lower forward extensionparallel with the upper overhanging portion and having a flat bearingagainst the under face of the extension of the lower jaw, a screwmounted in the said overhanging end opposite the base of the extendedsupport, and a screw out of vertical alinement with said screw andengaged in the extended lower horizontal por tion of the frame andforward of the bow of said frame and in the extension of the lower jaw,all substantially as shown and described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOSEPH B. LESTER.

Witnesses:

FRANK S. DEWIRE, MAY F. RITCHIE.

